21. The 20th century witnessed some changes in _______ development of ________ Japanese language.

A. the, the              B. the, /                 C. a, the                 D. /, the

22. Being determined is a kind of quality and that’s _________ it takes to do anything well.

A. which                B. where               C. how                   D. what

23. Who will you _________ the article into English?

A. have translated                                           B. have translating        

C. have translate                                              D. have to translate